Portable projecting and sound reproducing apparatus



Au 18, 1936. v c. M. WEBER 2,051,661

' PORTABLE PROJECTING AND SOUND REPRODUCIM} APPARATUS Filed Oct. 29,1934 2 Sheets-Sheet 1 I INVENTOR I Gun /7 L/QQER I 32 5 3 ATTORNEY 1936'c. M. WEBER 2,051,661

PORTABLE PROJECTING AND SOUND' REPRODUCING APPARATUS Patented Aug. is;use

7 UNITED STATES PORTABLE momc'rme AND SOUND nnrnonucme APPARATUS Carl M.Weber, Rochester, N. Y. Application October 29, 1934. Serial No. 750,541

2 Claims.

This invention relates to portable moving pic- I ture projectorsincluding soundreproducing equipment and has for its object to dividethe equipment in several easily handled small units -for transportationpurposes and provide these units with means whereby the units can bequickly and :easily brought together and mechanically and electricallyconnected at the same time with the aid of combined mechanical andelectrical connecting members.

This and other objects of this invention will become more readilyapparent from the detailed description thereof which follows, referencebeing had to the accompanying drawings in which Figure 1 is a detailperspective view of the combined amplifier and loudspeaker in portableform.

Figure 2 is a detail perspective view of the combined projector andsound reproducer in portable form.

Figure 3 is a perspective view of the combined vprojector, soundreproducer with the amplifier mechanically and electrically connectedand attached thereto and forming thebase therefor.

Figure 4 is a detail top plan view of the amplifier.

Figure 5 is a bottom plan view of the projector.

Figure 6 is an end elevation 01 the amplifier and projector mountedthereon with portions of .the projector broken away.

In the several figures of the drawings like re!- erence numeralsindicatelike parts.

My present invention is especially adapted for small portable sixteenmillimeter film projectors provided with a sound reproducer including anamplifier and a loudspeaker. As illustrated in the figures thisequipment, in order to make it readily transportable, is divided so asto provide but two carrying cases illustrated in Figures 1 4c and 2. Thecarrying case illustrated in Figure 1 comprises the loudspeaker unit iand the amplifying unit 2 which are suitably held together so as to bereadily transportable by means of the handle 3. w

The carrying case illustrated in Figure 2 contains the projector withthe sound reproducing apparatus which are fixedly mounted in the case soas to be readily transportable by means of the handle 5. The mechanismof the projector and sound reproducer is shown in Figure 3 in which oneside of the case is swimg open for the adjustment thereof. Afrone end ofthe outside of the case 4 is provided the clip 6 and at the top of thecase is provided asimilar clip I. These clips are adapted to have thebrackets 9 and i0 removably mounted thereon for the support of. the filmreels II and l2.- The brackets are suitably stored within the casesurrounding the loudspeaker I.

To set up the combined film. projecting and ii sound reproducingequipment, the amplifier section 2 is removed from the loudspeakersection and placed on a suitable support to provide a horizontal basefor the projection unit case 4. As illustrated in Figures 3, 4 and 6,the amplifier 10 unit, when used as a base, has an elevated platform l3which is located intermediate the bank of radio tubes l4 on one side andthe control panel lion the other side. At one end of the platform It isprovided the socket it for the re- 15 ception oi! the plug connectionwhich furnishes the electric power for the complete operation of theprojection and sound apparatus and at the opposite end of the platformis provided the socket ii for the reception of the plug connection 20from the amplifier unit to the loudspeaker. In this way one electricalextension cord leading to the equipment furnishesthe electric currentfor the complete operation of the equipment and another electricalextension cord leads from the equipment to the loudspeaker to permit itslocation at the most advantageous point for the audience.

For the mechanical and electrical connection between the amplifier (unitand the combined projection and sound unit, the platform of theamplifying unit is provided with three plugs it, it and 20. Each ofthese plugs comprises an enlarged base with a cylindrical projectionwhich inthe plug 20 carries three prongs 2!, 22 and 23 and in plugs i8and i9 carry two prongs 24 and 25.

The plugs are fixedly mounted on the platform and their prongs providethe electrical connection between the socket i6 and the electric motor26 and projection lamp iocated in the housing 2'! and also between theamplifying mechanism of the amplifying unit and the sound reproducingapparatus of the projector. The three prong plug 20 serves as theelectrical connection for the operation of the motor and the projec tionlamp and the two prong plugs l8 and I9 serve as the electricalconnection between the sound reproducing mechanism, the amplifier andthe loudspeaker. To complete the electrical connections as abovedescribed, the plugs are inserted into the corresponding sockets 28, 29and 30 carried by the base of the projection apparatus. as illustratedin Figures 4 and 5." These sockets are mounted in the base 3| of theprojection apparatus and suitable openings in the case surrounding theapparatus permit the insertion of the plugs into the sockets asillustrated in Figure 6. While the electrical connection is made asabove pointed out, the mechanical connection between the amplifier unitand the projection ap paratus, which holds the projection apparatus inthe proper position on the amplifier unit, is made by the engagement oi.the plugs of the amplifier unit which also form suitable guide postsinto the sockets of the projection apparatus and locks these two unitstogether in their proper relative position with the bank of radio tubeson one side of the projection apparatus and the control panel on theother side thereof where the control members are readily operable on theside of the apparatus which can be opened for adjustment as illustratedin Figure 3.

On the control panel are provided suitable switches 32, 32 to turn onand off the electric current for the various electrical devices of thecombined apparatus and the control knobs 33, 33 with which the volume ofthe sound apparatus. is adjusted. A suitable socket 34 is provided forthe connection of a microphone or the use of a talking machine to beused in connection with the projection apparatus.

From the foregoing it will be seen that the ar-- rangement and permanentmounting of the variout parts of the combined projection and soundequipment in two carrying cases makes it possible to electrically andmechanically connect and to set up the entire mechanism in a minimumtime without any chance of making an error in either the mechanical orelectrical connection in the set up. The equipment can of course bedismantled at an equally short time and in addition divided andrearranged into two carrying cases for the ready transportation thereof.

I claim:

1. A portable talking-motion-picture apparatus adapted to be readilytransported by hand in the formof two containers and quickly set up foroperation as a. single unit, comprising one container having a pluralityof female connecting ,1

members and another container having a corresponding number of maleconnecting members for mechanically connecting and removably supportingsaid first container in a predetermined for the operation of saidmechanism leading to and from said female connecting members, saidsecond container having a removable cover embodying a loud speaker unitlocated over the male connecting members within the container to coverthe male connectors or said second container for carrying purposes andexpose the male connectors for the connection and support 01! the firstcontainer on the second container. on the removal of the cover andprovide a loud speaker unit that may be mounted remotely from thecombined first and second container, said second container alsoenclosing amplifying means and control meanswith electrical connectorsleading to and from said male connecting members and electricalconnecting members within said mechanical connecting members to connectsaid electrical connectorsof said first container with the electricalconnectors of said second container and provide the unitary control ofsaid combined film projecting, film feeding, sound reproducing andamplifying mechanisms by the control means of said second containerwhile said first container is supported and mechanically connected tosaid second container in a predetermined position.

2. A portable talking-motion-picture apparatus as set forth in claim 1with a single electrical connecting member provided on said secondcontainer and electrically connected to said electrical connectingmembers to provide a single source of electricity for the operation ofthe mechanism in both of said containers.

' CARL M. WEBER.

